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Finding the Fourth Proportional to 438,220.76, 604,744.68 and 237,016.76

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Solution

The fourth proportional to 438,220.76, 604,744.68 and 237,016.76 is: 327,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,220.76 : 604,744.68 = 237,016.76 : x
  2. Step 2: Convert to fraction form
    438,220.76/604,744.68 = 237,016.76/x
  3. Step 3: Cross multiply
    438,220.76x = 604,744.68 × 237,016.76
  4. Step 4: Simplify right side
    438,220.76x = 143,334,624,680.84
  5. Step 5: Solve for x
    x = 143,334,624,680.84/438,220.76
  6. Step 6: Final answer
    x = 327,083.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.